Create an Extension

Before registering a SIP account on phones, you need to create a SIP account.


  1. Go to Settings > PBX > Extensions, click Add.
  2. On the Basic page, go to General section, and set the general settings of the extension.
    • Extension: Enter the extension number.
    • Caller ID: Enter the caller ID number. The called party will see this caller ID number when the extension user makes an outgoing call.
    • Caller ID name: Enter the caller ID name. The called party will see this caller ID name when the extension user makes an outgoing call.
    • Emergency Outbound Caller ID: Enter the outbound caller ID for emergency calls. The PSAP (Public Safety Answering Point) can pinpoint the user's location based on the caller ID.
      Note: The setting takes effect only when the extension uses enhanced emergency calling. You don't have to configure the option if the extension uses basic emergency calling.
    • Registration Name: The name used to register a SIP extension.
    • Registration Password: The password is used to register the extension.
    • Concurrent Registrations: Yeastar Cloud PBX supports to register one extension number on multiple phones. When a call reaches the extension number, all phones will ring. The maximum number of concurrent registrations is 4.
  3. On the Basic page, go to User Information section, and set the user information.
    • Email: Extension user can reset his/her login password, receive voice mails, faxes, or PBX notifications via this email address.
    • User Password: The password is used to log in the PBX or log in Linkus mobile client. The password is generated randomly by default.
    • Prompt Language: The default prompt language is the same as the system language. If the extension user speaks foreign language, you can set a specific system prompt.
      Note: Before selecting other system prompts, go to Settings > PBX > Voice Prompts > System Prompt to download online prompts.
    • Mobile Number: Extension user can receive the PBX notifications or forwarded calls on this mobile number.
  4. Click Presence, Features, Advanced, or Call Permission tab to configure other settings.
  5. Click Save and Apply.